Abstract
The chassis is the structure for installing and protecting various circuit units, components and mechanical components inside the electronic device. Vibration fatigue damage is a major form of structural damage, and the vibration fatigue life prediction of the chassis structure is of great significance. The theoretical calculation of structural vibration fatigue life has frequency domain method and time domain method, but it has certain limitations. The theoretical calculation method can not accurately obtain the vibration fatigue life of the structure. According to the actual structure of a chassis, this paper designs and processes a test model of a chassis, applies a random vibration load to the vibration table, and performs vibration fatigue test to predict the vibration fatigue life of a chassis structure. The results show that the vibration fatigue life of the chassis is 40 hours, and fatigue fracture occurs first at the pin.
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More From: IOP Conference Series: Materials Science and Engineering
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